Water-tube boiler.



CHARLES H. PARMELEE, OF SEATTLE, WASHINGTON.

WATEIt-TU BE BOILER.

Application fltcd November To all III/mm. it may row-urn:

lie it knot-n that l. (i-towns ll. lanue- 1.l-1i=., -itim-n ot" the l niled Hales. residing at \eattle, in the count) of King: and State of \Nashinglon. lnno invented a certain new and useful lmproveinent in ater Folio Boilers. o'l' thirh the following is a spmili ation.

M invention relates to imprmeinenls in water tulw boilers. and the ohjtwt of !n invention lrto provide a unitary structure which shall he adapted to he inrlosed in suitable n lls oi loaf-only operativolv to w-rvtas n Ul ll ll'l ll holler. and ehuih shall he further adapted to he operativelv uultrd sun by r-Mr with an lllei or any il -d ced number fil-ullur liltv unitary Hl-lllt'llli'ls ttltll of .hirh twnslitutw a unit. all of whirl: units so united, may, when inclosed by walls, operate as a single larger boiler A further object of my invention is to provide a water tube holler of such plan of construction that tlSHQlTllllPtl and di:-'associatt-d thu to Facilitate the operation of replacing any old part with a. new like part, as. for instance. substituting a new tube for an old one. and to facilitate the operation of I mming scaly deposits and dirt lron the interior of the tubes of staid boiler.

Ai 't-Mei h wrt of an r de watt-r tub boiler so r'onstrueted that its surfiu'es to be hea ed shall be so disposed with relation to a fire-box and passageways leading therefrom to a chimney. that said surfaces shall he most advantageously subjected to a contact with the heated gases generated in said firebox.

I accomplish these objects by devices illustrated in the accompanying drawings wherein-- Fi re 1 is a plan view of a boiler enibodylng my invention comprising two unitary structures disposed within a brick in closure whose top wall is r moved;

Fig. 2 is a view of the same in side eleva tion with its top wall in plat-e but with its nearer side wall removed;

Fig. 3 is a complete VlOW front elevation;

Fig. 4 is a view of the same in vertical cross-section on broken line 4. l of Fig. 2:

Fig. 5 is a view in front elevation of an unconnected one of said unitary structures and Fig. 6 is a fragmentar View of details of the same.

llHOlillOtl is to pm of the same in Specification of Letters Yatcnt.

its parts readily may be Patented June 18, 1918.

21.1916. SerialNo. 132.713.

Referring to the drawings, throughout uhirh like ref rence numerals designate like parts, an lnz'losur'e is formed of oppositely disposed \ertienl side walls 7 and 8 and a vertical rear wall 9. l'n't-ferably of brick, of which the walls 7 and H extend upwardly from a brink or ronrreto floor which is represented h a horizontal line 10. while the rear wall J extends upwardly from the top of the rear edge portion of a transversely disposed ("1s iron haso inenilu-r ll Wlllt'll rests on the Hour ll). it. shown more clearly in Fig. 2.

Disposed on top o the r-ar Will H and on ndjn-ent pnrl'liun ')l' the si -e Walls 7 and H is a metal plate 1: from whose foruard edge extends dounnaidly an integral flange 1 which serves as a deflector.

The plate 12 is ruvidell with a ('llt'tlltll opening through its central portion over which opening is fixed a rhimney Ll through which smoke may escape from the interior of the invlosure.

Disposed on the top surfaces of the side Walls 7 and S and on the top of the plate 12 is a lop wall 15. prvt'crahly of firebrick, which serves to cover the interior of the inclosure.

Disposed adja -ent to and parallel with the upper portion of thalront side of the base number ll is an iron h 36 which is of the shape of lhe letter T in crosssvction the op iosil'e on portion f which bar 16 are our lwddt-d t'tttl! in llw nrlj ent one of the walls 7 and 8 respect i rely. and which bar I'll serves as a, support For the rearward end portions of a plurality of grate-bars. like the gratebars '17. whose forward end portions are disposed to he supported upon an offset edge portion 18 it a transverse bar ltlwhose op posite end portions are also embedded in the Walls 7 and 9 adjacent to the vertical fro nt edges f said walls 7 and 8 to he supported theft-l IX Disposed within the space between the side walls 7 and 8 are two separable and like unitary structures each of which comprises a. i-mnplote water tube boiler, but both of which are so joined one to the other that both of them when thus disposed within the'same inclosure, may eoniointly act operatively to serve as it singlelarger boiler; and upon tearing away the walls 7., 8 and 9 and re moving, associated fittings. said two unitary structures may be disconnected one from the other and each of them be inclosed in a sepseparate boilers.

Moreorer, upon tearing away one of the side-walls 7 and 8 and removing associated turns coiild side fittings one or more like unitary strut he oined. to the ad acent one of said two unit uy'structures whereupon the as'a singlelarger boiler.

- respectively, are three verticall disposed rearward wall 9 could be lengthened, the top wall broadened and a new side, wall made to iflt'lQSG the three orin'ore joinedunitary structures to adapt them to act (:onjoinll) The two joined unitary structures within the inciosure formed'by the walls '4', 8 i) and are both like the structure shownby a view in'front elevation in Fig. 5,- each eni bodyi'ng a horizontally dis osed header, as headers and 9.1 indicate by'dottcd lines in Fig, 4, which headers ZO aud il are joined end to end by abutting flanges 22 and 23-respectively as more clearly shown by dotted lines in Fig. .4.

The headers 20 and 21, thus joiueth are disposed to rest upon the base member 11);

adjacent to the rearward wall"9,. and connected to each of said headers 20 and 21, by

means of unions, as unions 24 and unions 25 headers, asheaders '26'an'd- 27 as shown more clearly in Fig.4.

The front s1 rality of screw-threaded holes within which are screwed the screw-threaded end portions of boiler tubes, as boiler tubes 28 respectively, which boiler tubes 28 extend forward to project their other ends into and through holes in the rearward Wall of corresponding vertical headers like the -vertical headers 30, disposed in the front end portion of the inclosure as indicated in Fig. 2.

The headers 30 are disposed to rest upon the top of the inward-1y projecting portion of a door frame 31 which doorfranie 31 is dis osed in a vertical metal front wall 32 which is dispose-dagainst the surface of the front ends ofthe walls"? and 8 where it is secured by verticalbars 33; said door frame 31 opening into a'fire box 34 above thegratebars 17 and said door frame 31 hoingpro vided with two doors 35 and 36 shown in Fig. 3. I In the metal front wall 32; below the doors 35 and are two other doors 37 and 38 which open into the ash pit below the grate-bars '17.

Theholes in the. rearward Wall of each of the vertical headers 30, through which the ends of the tubes 28 respectively. project, are countersunk on theinterior side of said well, and, opposite each of said holes. the frontward wall of each of said headers 30 is providedwith a larger, screw-threaded,

hole each ofwhich holes except the top one is closed by a screw-threaded plug, as plugs tar view shown in Fig. 6.

de'wallof each of the vertical headers 26 and 27 is provided with a phr 39, which largerscrmr-lhreaded hole is large enough to permit a hoiler tube 28 topass thorn-through to dispo e its rearward screwthreaded end in the wall of-a corresponding .header 26 or '37 and to permitthe-introduc-v tion of a tool tor expanding the frontend of a tube 28 to flare it to engage with the countersunkinner surface of the rear wall' of a header 30 as indicated by the fragmenl'lxtonding through the front metal wall 32 into the upporn'iost scrmv-threaded hole in the front side of each of the Vertical headin Fig. 1!, the outer ends of which nipples 40 are connected by right and left hand screwthrcaded couplings like the coupling -11, with nipples provided in the ream side of two horizontally disposed joined headers 42' and 425 disposed parallel with and adjalent to the other side of the wall 32.

.ers 30 is a nipple, like the nipplellf) shown -i The front' ide of the headers 42 and are provided with holes disposed opposite respective ones of the uppermost tubes 28 which holes are also closed by removable plugs 39.

has. by removing the plugs 39 a scraper niay he 1nsertedinto the sewral tubes 28 to remove scale and dirt that maybe accumulatedtl ierein. i t

Extending downwardly through the center of the top sideof each of the horizontai headers i2 and -i3 is a screiwthre a'ded hole provided with a nipple and coupling. as con plings 4- and 45. respectively,. which conplings 44 and -15 connect with the underside of the outwardly projecting entl porextend i'eai'avardly withinthe inclosurc with their end surfaces adjacent to the deflector 13.

tious of two steam drums i6 and 47 which Connecting with the interior of the steain I drums 46fand 47 through the top side of the outwardly projectin' end portions thereofhy-uw means of T fiiiings 48. wand 50 and couplings 5i. andr52. is a delivery steampipe 53. "'1 p Y i The outer end of the headers 42 and '43 are connected to T fittings 54 and 55. respectively. and interposed between the T fitting 49 and the T fitting 55 are pipe eon nections with which are associated gage cocks 56, a water gage 57 .and apressure gage 59 of well known 'form.

,Extonding downwardly from the T fittings-54 and 55 to T fittings 59 and 60 are.

pipes 61 'and 62, respectively.

The T fittings 59 and .60' connect with the outer ends of pipes 63 and 64. respectively.

-which are embedded in thebrick side walls tings 65 and 66. indicated by dotted lines in Fig. 4, from which the T fittings 65 and vided with plugs. as plugs (36 pipes 6'? null i-H respm li ely extF-nd upwardly within will \Yllllw 8 and pro-- titely. to con-hurt Wtlll T fittings G3 on! 7t); i'rqirrhi'rly, as mrlwatrtl h iloltm hnns in suitl Fig. 4.

Dlqmsvtl to RXltlill trnnwrisml nor-wen lllt' T fittings 65* and TU :ihww 1hr tllHN 12% is u pipv oonnrrtion i'l ulnrh tlifllilltfn' T ii? tings T? and Ti) whirh T fittings 7'2 and LL roqwrtisoi room-r ith nipples T4 not! 2 \\hi h arr rrrwml tillti 1hr unalvrrido of tho inner rml portiom of ho drum drums i6 mul ll] reopootiwly.

The rrarnnrd trr'ni mi of lil" T fitting" 65 and 6'6 an: connvciwl pi er)" like tho pipe Tl ho\"-'n in Fig. 1, 'liltill pipvs "(it ronnrot rwprotiivrly nith the waiter (itflH of the horizontal h-ailrrs :2 :url it. by tho meam of T fittings, like the T fitting 7? shown in Fig. 2.7 nhirh T fittings are mnherh ilril in tho Wall: i haul i. rwpm'tively. the outer terminal of tho T fi ting 71' being ronnoolwl with :1 wzitrr food pipv T8 while the ootrr trroiiml of tho correm iomling T fitti g that is (-ouiu-rtml with tho rn-l f the l'lt-Hnil' 21. is ilowd lay a rumor: hllplug T9, as l (mu morn rh-nrly in Fig. 4; Hum lly dllh" (roam-ding): tho 'Fl'Ltl pipr TR nml rrmm'ing ttw pingl' tho intrrior of thilflilllul :20 and .il Mull, ho rlrunctl with futility Dlspmml upon the top of the base Inrnr l'i' ll n :2 hlwrh Hit and 'letlrrtor Q1, of re Frm'torl mun-rial. 21S oi" fire brick, and dis- IJOHPil r thr top ;-itlr-s of tho hottom row of tubes 28 s a ilrthiotor 5-53. of roi'rnvtory ma terial whioh oxirn'ls' from tho front end of the inrlrwire to a point spaced from the (leflrctor 81, thus to ounsn all products of com hustion and hentrtl gnarl to pass in tho (iirertion of the, arrow \QhnWn in Fig. the firr-hox 31' through the Spill)? the rearward rml f tho ilotlromr the Front Sltl f tho rlelloct'or F51.

Tlispoeml upon tho lop of tho tuhos n tliflPttOT RI? whivh vxtrnds from thr- Warwnrd vortir'nl wall 0 to a point, spaced from tho front mrtal all 32 whrrohy heated gases must travrr e throughout the length of tho sparo hotwvrn the tlrflofitors 82 and 83 to flow upwardly in tho direction of tho arrow to impiugr against the frontward port ion of the steam drums 46 and 47. {henna to flow roarwairellv to pass: beneath the (10-- flootor 13, thonro upwartlly through the. chimnuy 14, intlioatrd by the longer rurvecl arrow in Fig. 2.

Tho outer ends of tho T fittings 69 and 70 are provided with removable plugs 8 and 85, renpectiivoly. which may he removal to (loan the intorior of the pipe ('onnootion 71 and elbows 72 and 73.

The T fittings 59 and betiwoon 82 and 60 are also mm 86 and 8'? Whioh ln 5 may he removed to clean the interior of t c pipes like the pipe 63.

Q) from The fwd wntor pioo 75 [may he cextnntlwl m a conrrniont nourro of mor and the lolixery stream pipe, 53 may hr rxlomlml to :1 rlvsiresl point, of tlolivery.

As thus "(instructed tl'm wright, of tho \tram (lrunw 46 and 4? is sm mutml h tho pipe, connection Tl and tin hradcrs l2 11ml 4% rozvzting wlth the outwardly pili lflllhp; 0nd of tho piprsl lilo, tho pipe 63. to hit it pipes the T fining 51 Jllll (35) am roar nocteth and tho wright of the tubos :18 and thrir tlSSfiClilttjtl hrmlrrs 2F. 27 owl fitfi nl'o supported by the door frame 3t and. tho huso member U. in an OllklOU'w nun-nor. llw cloor ironic 31 bring supportll h the iron 10TH! Liar l9v lho-oprration of my ltlYPltitUlt :n; rinhotlied in the boiler illustrated by tho (trawings may he (lQbttllQNl us tollownz Water is atlznittrd through tho Peril pipc 78 to fill the tubes 2%. tho flfiSOl'lillMl hezulrrsi and pipe connections. and to rm, ilwrotroni into the steam drums 46 and 1T to lln h-Yvl indicated by hrokrn lines in Fig. h thoroupon a. tire is uunlv in tho tirohox I34 with tho ro stilt that heated gases will low lhrrvl'rom through tho SPMO hetwron tho illllt'ttflla Bl 21ml 82 thoure to pass {UYWiiit'iif :hrough the Spare hr-twoon tho tlrllwtow H). illltl n t. hon r to pass upwardly through the pmrn hotn'rrn tho front (fill of tho ll lllt'hfl Hi and tho front niotal \Yltll 2'32 throw to flow rmlrwnrill ithin tho spa-1'0 mrroumling tho llil'lilll rlrunw 4t: antl -17 to he h-tlwtwl iltm'nnurally h}; the (lrtlrctm iii! thnm'v to flow upwardly through tho rhimno l-l, whrrch tho watrr tnhrs it? one? tlw strum drums ltl and t7 will mosh :mmutugrvously almorh thrhrut of sun-h gum-s lo proilu o tho Hum. oronomival result.

hlanift-stly if it or llosirmi. one or morn unitzuj structures embodying! my invention may hr l'lhLOClELl'ffd with n nit-tail inolo uro linrd with suitnhlo rofrnctorv nmtrrial thus to form :1 inglo portable hoilor :iml rhnngos may h math: in tho for-mg (limonsions an zirrrmgmwnl of parts of my invention without departing; from the spirit thrroof.

What i iaim is:

L In a nntn? tube holler of u plnraiisy oli upper longitudinal steam drums, a plurality of trunsvrrso horizontal headers doturhnhly joined. rod to vuil, each connootrtl to and arranged lwlow mu: of the drums at the forward Pntl thvrrol, run! and front; sulwtnntiallyj \vrtiical heatlrrs 111" ranged below said drums a plurality of substantially horizontal wator tubes connecting said vertical headers, pipr connections hrbworn the front vertical headers and tho transverse horizontal headers. and pipo connortions oxtonding from the rear ends of said steam drums and from the transverse horizontal headers to the rear vertical emitters.

the combination 2. In a water tube boiler, the'combination of a plurality ofup er longitudinal steam drums, a pluralit o transverse horizontal headers (lctachab y joined end to end, each connected to and arran ed below one of the drums at the forward end thereof,

rear and front substantially vertical headarranged below said drunis, a plurality of substantially horizontal water tubes con-t ncctiug said ,vertical headers, pipe connect tions between the front vertical headers .and

the transverse horizontal headers, rear transverse horizontal headers detachably joined cud to end and. connected to and arran beneath the rear vertical headers, and pi e connections extending from said first named transverse horizontal headers and from the header connected to the rear snbstantially vertica'l header and pipe connections between the front and rear transverse headers, said front and rear transverse headers having their ends formed for ready connection with additional similar headers where by the boiler may be enlarged.

4, A water tube boilerincluding front and rear substantiallv vertical headers connectcd by substantially horizontal longitudinal water tubes,a longitudinal steam drum above said water tubes,,a transverse ront horizontal header connected .to said steam drum and to the front substantially vertical header, and, a transverse rear horizontal header connected to the rear substantially vestical header and to the front transverse header, said transverse headers havin their ends formed for ready connection with ad-' ditional similar headers whereby the boiler may be enlarged.

5, A water tube boiler including front and rear substantially vertical headers connected by substantially horizontal longitudinal water tubes, a longitudinal steam drum above said vvatcr tubes, a transverse fronthorizontal header connected to the forward end of said steam drum and to the top of said front substantially vertical header, a

transverse rear horizontal header connected to thebott'om of the rear substantially ver-- tical header, and pipe connections between 1 the rear end of the steam drum and the front and rear transverse headers, said transverse headers having their ends formed for ready connection with additional similar headers 'whereby the boiler, may be enlar ed. v

n ,witness whereof, I hereunto subscribe my name this 10th day of November, A. D. 1916. v

CHARLES H. PARMELEE. Witnesses Geo. BLAIR,

FRANK WARREN. 

